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Finding the Fourth Proportional to 7,179.05, 9,903.71 and 4,530.35

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Solution

The fourth proportional to 7,179.05, 9,903.71 and 4,530.35 is: 6,249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.05 : 9,903.71 = 4,530.35 : x
  2. Step 2: Convert to fraction form
    7,179.05/9,903.71 = 4,530.35/x
  3. Step 3: Cross multiply
    7,179.05x = 9,903.71 × 4,530.35
  4. Step 4: Simplify right side
    7,179.05x = 44,867,200.43
  5. Step 5: Solve for x
    x = 44,867,200.43/7,179.05
  6. Step 6: Final answer
    x = 6,249.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.